Now this one in particular was longgggggg as hell, this could easy make for 5 awesome posts. While reading it, I noticed how engaged I was in their conversation.

I think if you just set some preemptive guidelines with someone you're conversing with via email, such as ideas/subjects/questions/objectives you hope to accomplish, you can really get a great conversation going. It's a free-flowing conversation, and you just need to reply in small bursts throughout a day or week. Just make sure to provide enough context in your intro for readers.